Showing posts from July, 2014

Malicious Linux commands to avoid

Warning: Don't run these commands on your machine. They can erase your valuable data or crash your machine.
It is worthwhile to have basic knowledge about malicious commands in Linux. Don't blindly run the commands instructed in websites or scripts downloaded from the internet. Just verify the contents of the script for any commands that can harm your computer.If you want to know what a command can do use the man pages if you are offline. You can get the information of a command by typinginfo <command name>in the terminal.Example: info sudoIf you are connected to the internet then typeman <command name>in the terminal to get the updated documentation.Example: man sudoAgain, the following commands can heavily damage your OS. These are extremely dangerous and should not be attempted on any computer that has any physical connection to valuable data.

rm -rf / rm -rf . rm -rf *
rm means remove, -f means "force" …


Do I need to have an anti-virus software for Linux? Isn't Linux virus free?If it is virus free then why are some anti-virus software in the software-center? If you are an average user of Linux you might be having these questions.So, do we really need an anti-virus software installed? The answer is 'yes' and 'no'. Don't worry after reading this post you will know if you need an anti-virus for your Linux.There are viruses for most all platforms, they are just more common on Windows. You can actually run Windows without a virus scanner if you keep it patched and are really careful. If you are really careful and know what you are doing you can get away without a scanner. The fact of the matter is: viruses/worms take advantage of flaws or holes in the code.There are some viruses targeted on Linux platform. Linux and other UNIX platforms are regarded are well protected, but not immune to computer viruses. It is said that Linux is not targeted because its low share ma…


This post explains how to install Java in Ubuntu. You can install Iced tea java (open source) or the Oracle java. Installing Iced tea java is simple where as to install Oracle java you have to struggle a little with the command line.Let's get started. First I'll tell you how to install iced tea java and then we'll see how to install oracle java.
Open a terminal by pressing CTRL + ALT + T keys or by searching for “terminal” in dash. Type the following to installed iced tea java on your machine.
sudo apt-get install openjdk-7-jre icedtea-plugin

That should install the java run time environment and the plugin for your browser.

To install oracle java you should first download the 32bit or 64bit Linux "compressed binary file" - it has a ".tar.gz" file extension. Now we need to uncompress the file. Right click on the file and select “extract here”. OR you can do it the terminal way:
tar -xvf jre-7-linux-i586.ta…


Most of you who have a Huawei USB modem (data card) might have tried to install mobile partner (dash board) in Linux. Here I will show you how to install mobile partner in Linux.First, you have to copy the folder called Linux in the data card. The files in the data card are not accessible from Linux so copy them from Windows.Now right click the file “install” in the “Linux” folder. Go to the permissions tab and select the check box beside Allow executing as a program. Now open a terminal by pressing CTRL + ALT + Tkeys. Change the working directory to the folder “Linux” by using “cd <path to folder>”.Now type ./install. If you had installed this software in your system before, you will get a prompt: "The software is exist, do you want overwrites? ([Y]/[N])", enter "y" to overwrites or "n" to exit.If you do not had installed this software in your system before, you will get a prompt: "Please input the install path[/usr/local/Mobile_Partner]:"…


Are you bored with the purple boot splash screen in Ubuntu? You can customize the boot splash screen as you wish. After reading this post you will be able to play with your splash screen.
1. Use your favorite Wallpaper to replace the Purple boot splash:

NOTE: 1. Ensure the desktop wallpaper is the correct resolution for your monitor2. Here there is no animation

Open a terminal by pressing CTRL + ALT + T and type:

sudo mkdir /lib/plymouth/themes/simple

This will create a folder called “simple”.
After that rename your wallpaper as “wallpaper.png”. Now we need to copy the wallpaper to /lib/plymouth/themes/simple.
Open nautilus by typing gksu nautilusin the terminal. Now copy the wallpaper to /lib/plymouth/themes/simple.
Return to the terminal and type:

sudo gedit /lib/plymouth/themes/simple/simple.plymouth

In gedit paste the following:

[Plymouth Theme]


Description=Wallpaper only






You can change your plymouth theme ( Ubuntu boot splash) as you wish. In this post I will tell you how to change your plymouth theme. Plymouth themes can be downloaded from the internet. You can download plymouth themes from gnome-look website. You have to extract the downloaded theme file.
Now open a terminal by pressing CTRL + ALT +T. Now type the following in the terminal:


Now copy the extracted theme file to /lib/plymouth/themes
Copy the file “splash” to/etc/initramfs-tools/conf.d(Optional, for better buffer).
Now type the following in the terminal:

sudo update-alternatives --install /lib/plymouth/themes/default.plymouth default.plymouth /lib/plymouth/themes/ubuntu-sunrise/ubuntu-sunrise.plymouth 200

sudo update-alternatives --config default.plymouth

Choose the number associated with your theme.
Type in the terminal

sudo update-initramfs –u

Now type

sudo reboot

That's it. You have installed your favorite plymouth theme.


Adobe® Flash® Player is a lightweight browser plug-in and rich Internet application runtime that delivers consistent and engaging user experiences, stunning audio/video playback, and exciting gameplay.

Note: Adobe Flash Player 11.2 will be the last version to target Linux as a supported platform. Adobe will continue to provide security backports to Flash Player 11.2 for Linux.
To install Adobe Flash player in your Ubuntu follow these steps:

Open a terminal by pressing CTRL + ALT+ T keys and type the following:

sudo add-apt-repository ppa:sparkers/ppa
Then type
sudo apt-get update
After that type the following to install Lightspark:
sudo apt-get install lightspark browser-plugin-lightspark
You can use Google chrome which has Flashplayer installed by default


Blender is a powerful and free 3D graphics tool used by designers and artists worldwide.Blender is an integrated 3d suite for modelling, animation, rendering, post-production, interactive creation and playback (games). Blender has its own particular user interface, which is implemented entirely in OpenGL and designed with speed in mind.
Blender was first conceived in December 1993 and became a usable product in August 1994 as an integrated application that enables the creation of a diverse range of 2D and 3D content. Blender provides a broad spectrum of modeling, texturing, lighting, animation and video post-processing functionality in one package. Through its open architecture, Blender provides cross-platform interoperability, extensibility, an incredibly small footprint, and a tightly integrated workflow. Blender is one of the most popular Open Source 3D graphics applications in the world.Aimed at media professionals and artists world-wide, Blender can be used to create 3D visualizat…


Software-center is a graphical interface for package management in Ubuntu. There are many alternatives to the Ubuntu software-center.
Appgrid is a lightweight alternative to Ubuntu software-center. It will also allow you to purchase applications.You can install it in Ubuntu with these following commands:
sudo add-apt-repository ppa:appgrid/stable
sudo apt-get update
sudo apt-get install appgrid

Lubuntu software-center is another alternative to Ubuntu software-center.The Lubuntu Software Center lets you browse and install thousands ofapplications available for Lubuntu. You can view availableapplications by category, or search quickly by name or description.You can also examine the applications already installed, and removethose you no longer need.
You can install it by using the following command:
sudo apt-get install lubuntu-software-center

You can install deepin software-center by using the following commands:

sudo add-apt-repos…

Games for Linux - Lugaru HD

LUGARUDo you love playing games? If you are using Linux you might have been feeling bad about the scarcity of nice games in Linux. Well, here's a nice game for you! It's Lugaru, a game about a rabbit with combat skills.Lugaru is the first commercial game by Wolfire Games. Lugaru's maincharacter is Turner, an anthropomorphic rabbit with curiously well developedcombat skills. After seeing his family and friends murdered by wolf raiders heembarks on a quest of revenge, only to uncover a deeper plot that threatens theentire island. Using a wide variety of intuitive combat techniques, the playercombats wolves and hostile rabbits across three different landscapes(grasslands, snow, desert). The game was released for Linux on August 26, 2005.
The game has two modes: story mode and challenges mode. In the story mode you    will play as Turner to avenge his family and friends. In the challenges mode you will have 14 challenges. It involves the player progressing through a series of f…

Coloured man pages!

Are you bored from viewing monochrome(black & white) man pages?  Let's make the world a little bit colorful.

Colored man pages allow for a clearer presentation and easier digestion of the content. Let's see how to do it.

Method 1:Open a terminal and type the following codes:

sudo apt-get install most

export PAGER="most"
That's it now open your favorite man pagesand you will be awestruck to see colored man pages.
Method 2: This method has the advantage that less has a bigger feature set than most, and is the default for viewing man pages.
Add the following to a shell configuration file. All that needs to be done is to export bold and underline values of termcap. Adding the values to the ~/.bashrc will make sure that they are always used:
# Less Colors for Man Pages
export LESS_TERMCAP_mb=$'\E[01;31m' # begin blinking
export LESS_TERMCAP_md=$'\E[01;38;5;74m' # begin bold
export LESS_TERMCAP_me=$'\E[0m' # end mode
export LESS_TERMC…